import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login'
import Home from '../components/Home'
import Welcome from  '../components/Welcome'
import Users from  '../components/user/Users'
import Rights from  '../components/power/Rights'
import Roles from  '../components/power/Roles'
import Cate from '../components/goods/Cate'
Vue.use(VueRouter)

const routes = [
  { path : '/', redirect: 'login'},
  { path : '/login' , component: Login},
  {
    path : '/home' ,
    component: Home,
    redirect:'/welcome',
    children:[
      { path : '/welcome' , component:Welcome },
      { path : '/users',component:Users},
      { path : '/rights',component:Rights},
      { path : '/Roles',component:Roles},
      { path : '/categories',component:Cate}
      ]
  }
]

const router = new VueRouter({
  routes
})

//挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  //to将要访问的路径
  //from代表从哪个路径跳转而来
  //next是一个函数，表示房型
  //next()放行  next('/login')强制跳转
  if(to.path === '/login') return next();
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login');
  next()


})

export default router
